Abstract
Increasing age and physiological deterioration make it a safety problem for the elderly to go to the bathroom at night. In order to ensure the safety for the elderly, it is necessary to provide a certain degree of vertical illumination of the eyes and adequate illumination of the ground. However, excessive illumination also affects the rhythm and sleep continuity. This study aims to ensure the safety and rhythmic health of the elderly during the night, and a total of 80 senior citizens were studied. In this study, the type of bedroom light fixtures and night time use were counted, and the sleep quality of older adults was analysed in combination with the Pittsburgh Sleep Quality Index (PSQI) and measured illuminance data. Lighting graphs help to express the problems. The results showed that the mean vertical illuminance of the eyes with the lights on was 75.24 lx (SD=±46.81), and the illuminance of the ground was 25.72 lx (SD=±14.54). 66.25 % of the older adults use the table lamps in the bedroom. The problems with all kinds of the lamps were analysed in light diagrams. The result of the PSQI questionnaire showed a mean score of 8.10 ± 2.463, which scores too high and means bad sleeping condition. There is a high level of ocular illuminance, which affects the rhythm of the elderly people, and the ground illuminance is insufficient, which makes it difficult for the elderly people to notice unsafe factors such as the debris on the ground
Publisher
Redakcia Zhurnala Svetotekhnika LLC
Reference9 articles.
1. 1. Hegde, A.L. Environmental Lighting in Nursing Homes: A Comparison of Agency Standards that Regulate Nursing Homes with Industry // ANSI/IES RP‑28 Lighting Standards, International Journal of Design in Society, 2018, 12(1).
2. 2. Harris-Kojetin, L., Sengupta, M., Park-Lee, E., et al. Long-term care providers and services users in the United States: data from the National Study of Long-Term Care Providers // Vital & health statistics. Series 3, Analytical and epidemiological studies, 2016 (38): x-xii; 1.
3. 3. Xiaotong, L. Research on the design of barrier-free and age-friendly living spaces // Jiangxi Building Materials, 2021, 01, pp. 96–98.
4. 4. Watson, A. B., Yellott, J. I. A unified formula for light-adapted pupil size // Journal of vision, 2012, 12(10), 12–12.
5. 5. Gongxia, Yang, Xudong, Yang. Seniors and Lighting (Continued second) // Light source and lighting, 2010, 04, pp. 44–46.